Datasheet

10Maxim Integrated
MAX11329–MAX11332
3Msps, 12-/10-Bit, 8-/16-Channel ADCs with
Post-Mux External Signal Conditioning Access
Typical Operating Characteristics (continued)
(MAX11331ATI+/MAX11332ATI+, T
A
= +25°C, unless otherwise noted.)
SNR vs. INPUT RESISTANCE
MAX11329 toc09
SNR (dB)
R
IN
(I)
1000 2000 3000 4000
500 1500 2500 3500 4500
71
72
73
70
0 5000
f
SAMPLE
= 3Msps
f
IN
= 100kHz
AOP SHORTED TO AIP
AON SHORTED TO AIN
BUFFER BETWEEN AOP AND AIP
BUFFER BETWEEN AON AND AIN
75
80
85
90
SFDR vs. INPUT RESISTANCE
MAX11329 toc12
SFDR (dB)
R
IN
(I)
1000 2000 3000 4000
500 1500 2500 3500 4500
70
0 5000
f
SAMPLE
= 3Msps
f
IN
= 100kHz
AOP SHORTED TO AIP
AON SHORTED TO AIN
BUFFER BETWEEN AOP AND AIP
BUFFER BETWEEN AON AND AIN
SUPPLY CURRENT vs. TEMPERATURE
MAX11329 toc15
TEMPERATURE (°C)
I
VDD
(mA)
1109580655035205-10-25
3.5
4.0
4.5
5.0
5.5
6.0
3.0
-40 125
f
SAMPLE
= 3Msps
V
DD
= 3V
67
68
69
70
71
72
SNR vs. REFERENCE VOLTAGE
MAX11329 toc16
V
REFP
(V)
SNR (dB)
3.43.02.62.21.81.4
66
1.0
f
SAMPLE
= 3Msps
f
IN
= 100kHz
73
SINAD vs. INPUT RESISTANCE
MAX11329 toc10
SINAD (dB)
R
IN
(I)
1000 2000 3000 4000
500 1500 2500 3500 4500
71
72
73
70
0 5000
f
SAMPLE
= 3Msps
f
IN
= 100kHz
AOP SHORTED TO AIP
AON SHORTED TO AIN
BUFFER BETWEEN AOP AND AIP
BUFFER BETWEEN AON AND AIN
100kHz SINE-WAVE INPUT
(8192 POINT FFT PLOT)
MAX11329 toc13
FREQUENCY (kHz)
AMPLITUDE (dB)
1200
1200
900
1050
600300
450 750
-100
-80
-60
-40
-20
0
-120
0 1500
150
f
SAMPLE
= 3Msps
f
IN
= 100kHz
A
HD2
= -88.93dB
f = 200kHz
A
HD3
= -88.23dB
f = 300kHz
-85
-80
-75
-70
THD vs. INPUT RESISTANCE
MAX11329 toc11
THD (dB)
R
IN
(I)
1000 2000 3000 4000
500 1500 2500 3500 4500
-90
0 5000
f
SAMPLE
= 3Msps
f
IN
= 100kHz
AOP SHORTED TO AIP
AON SHORTED TO AIN
BUFFER BETWEEN AOP AND AIP
BUFFER BETWEEN AON AND AIN
REFERENCE CURRENT
vs. SAMPLING RATE
MAX11329 toc14
f
SAMPLE
(ksps)
I
REF
(µA)
2500200015001000500
50
100
150
200
0
0 3000